NPPES file of Aug 9, 2026

Siamac Esfandi, MD

Neurology Physician · Lakewood, CO

Siamac Esfandi, MD is a neurology physician with a practice address in Lakewood, Colorado, and NPI 1225271455, issued on Apr 17, 2009. Check the license (Colorado DR.0056777, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225271455
Name
Siamac Esfandi
Credential
MD
Primary taxonomy
Neurology Physician 2084N0400X
License number
DR.0056777 CO
Self-reported in NPPES; status is on the state search
Practice location
11750 W 2ND PL Ste 255, Lakewood, CO 80228
Phone
(720) 321-8040
Enumerated
Apr 17, 2009
Record last updated
Jul 21, 2022
Fax
(720) 321-8041
Medicare enrollment
Enrolled (PECOS I20160801001481); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 11750 W 2ND PL Ste 255

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Randall Allison, M.D.Neurological Surgery Physician1245627835
  2. Shaheryar Ansari, M.D.Neurological Surgery Physician1659646917
  3. Nicholas Boyce, PA-CSurgical Physician Assistant1205612595
  4. Deana Cairo, PAMedical Physician Assistant1518524461
  5. Chelsea Carruthers, PHYSICIAN ASSISTANTSurgical Physician Assistant1588148985
  6. Brian Chong, M.D.Diagnostic Radiology Physician1508840018

Verify Siamac Esfandi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical Board
    Search for license DR.0056777
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2% more Medicare Part D claims than the average neurology physician in 2024

1,395 Medicare Part D claims for 235 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 21 claims were for opioids.

  1. Siamac Esfandi1,395
  2. Specialty average1,370

Most prescribed

  1. Gabapentin194 claims
  2. Duloxetine Hcl115 claims
  3. Aimovig Autoinjector82 claims
  4. Baclofen80 claims
  5. Dalfampridine Er65 claims
  6. Pregabalin64 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 88.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%81.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $259.11

8 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Siamac Esfandi$259.11
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Catholic Health Initiatives ColoradoLakewood, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Siamac Esfandi among 396 neurology physician records in Colorado

Siamac Esfandi, MD is one of 396 neurology physician records with a practice address in Colorado. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.

  • NPI issued2009 · 52% of these records are older, 45% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2002 · median 2010 among the 275 with a school on file
  • Record last updated2022 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Colorado

There are 396 neurology physician records in Colorado.

The 8 neurology physician records with the nearest ZIP codes

  1. Laura Friedlander, MDLakewood, CO 802281578852042
  2. Matthew Loftspring, MDLakewood, CO 802281891134037
  3. Mark Murray, MD,PHDLakewood, CO 802281881856342
  4. Christopher Nichols, MDLakewood, CO 802281902919301
  5. Lynn Parry, MDLakewood, CO 802281942212964
  6. Wesley Reynolds, M.D.Lakewood, CO 802281982869251
  7. Ali Saad, MDLakewood, CO 802281689818809
  8. Richard Smith, MDLakewood, CO 802281740397017

Common questions

What is Siamac Esfandi, MD's NPI number?

Siamac Esfandi, MD's National Provider Identifier (NPI) is 1225271455, issued on Apr 17, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Siamac Esfandi, MD located?

The NPPES record lists a practice address at 11750 W 2ND PL Ste 255, Lakewood, CO, 80228. Phone: (720) 321-8040. Providers update this record themselves, so call before visiting.

How can I verify Siamac Esfandi, MD's license?

NPPES lists Colorado license number DR.0056777, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Siamac Esfandi, MD prescribe under Medicare Part D?

In 2024, Siamac Esfandi, MD had 1,395 Medicare Part D claims for 235 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

What is Siamac Esfandi, MD's MIPS final score?

The 2023 MIPS final score is 88.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.